W01.30-1083-09
Represented in engine 926.9 |
1 | Cylinder head | 5 | Engine brake flap piping (Only for vehicles with Code (MB1) engine brake with top brake) | 8 | Bracket (only vehicles with Code (GS3) "hydraulic" shifting) | ||
2 | Exhaust manifold | 6 | Gear shifter (only on vehicles with Code (GS1) "mechanical" shifting) | 9 | Coolant pipe (only on vehicles with Code (BA1) optimized power Voith Retarder or Code (BA9) secondary Voith R 115 retarder or on Type 950, 952, 953, 954, 958 with automatic transmission 723) | ||
3 | Engine brake cylinder (Only for vehicles with Code (MB1) engine brake with top brake) | 7 | Rocker arm mechanism | 10 | Connecting piece | ||
4 | Bracket |
W01.30-1084-08
Represented in engine 926.9 |
1 | Cylinder head | 12 | Top brake pipe (Only on vehicles with Code (MB1) engine brake with top brake) | 14 | Compressor cooling pipe | ||
11 | Injection lines | 13 | Fuel return line |
W01.30-1087-08
Represented in engine 926.9 |
1 | Cylinder head | 15 | Bracket (only on vehicles with Code (MS4) BlueTec 4 or with Code (MS5) BlueTec 5) | 16 | Cylinder head bolts |
W01.30-1085-09
Represented in engine 926.9 |
1 | Cylinder head | 18 | Wiring harness | 20 | Removal device | ||
16 | Cylinder head bolt | 19 | Coolant pipe connecting neck (only on vehicles with Code (MS4) BlueTec 4 or with Code (MS5) BlueTec 5) | L | Collar length | ||
17 | Bracket |
| Remove/install | ||
1 | Turn off ignition | ||
Danger | Risk of fire/risk of explosion due to short circuit and escaping oxyhydrogen gas. Risk of (burn) injury caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte/mist, short circuit and arcing. Risk of poisoning caused by swallowing battery electrolyte or absorption of lead through the skin or body orifices. Risk of death due to voltage U >= 30 V AC and U >= 60 V DC. | No fires, sparks, open flames, or smoking. Wear acid-resistant gloves, clothing, and glasses. Pour battery acid only into suitable and appropriately marked containers. | |
2 | Disconnect battery ground strap | ||
Warning | Risk of injury caused by body parts being pinched or crushed as cab is tilted | Ensure that no one is within the tilting range of the cab as it is being tilted. Always tilt the cab all the way to the end position and secure it with the safety strut. | |
3 | Tilt the cabin | Installation: Return the cab to the original position only after the leakage test. | |
4 | Let the coolant drain |
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5 | Remove the bracket of the metering apparatus of the exhaust gas aftertreatment system |
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6 | Remove the magnetic valve of the SCR reservoir heating |
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7 | Disassembling the turbocharger outlet pipe for the coolant |
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8 | Remove the intake manifold | ||
9 | Remove the articulated lever (7) |
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10 | Remove the coolant pipe (9) on the joining piece (10) | Engine 924.9, 926.9 with Code (BA1) Voith retarder with optimized power or with Code (BA9) secondary Voith retarder R 115. | |
Replace the gasket. | |||
11 | Remove the connecting piece (10) between the cylinder head (1) and the coolant medium pump |
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Replace the packing and the joint neck. | |||
Support in the cooling pump | |||
12 | Remove engine-brake cylinder (3) | Engine 924.9, 926.9 with Code (MB1) engine brake with top brake. | |
13 | Slacken the bracket (4) on the engine brake flap piping (5) and turn to the side | Engine 924.9, 926.9 with Code (MB1) engine brake with top brake. | |
14 | Remove the exhaust manifold (2) on the cylinder head (1) | Installation: Clean the sealing surfaces and replace the gaskets. The marking "TOP" has to point to the exhaust manifold (2). | |
Exhaust manifold to cylinder head | |||
15 | Remove the gear shifter (6) with bracket on the cylinder head (1) | Vehicles with code (GS1), manual transmission. | |
16 | Remove the bracket (8) of the hydraulic pipes on the cylinder head (1) | Vehicles with Code (GS3) transmission control "hydraulic". | |
Danger | Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel. | No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only. | |
17 | Remove the top brake piping (constant throttle) (12) on the cylinder head (1) | Vehicles with Code (MB1) engine brake with top brake. | |
Replace seal rings. | |||
18 | Disassembling the pipes of the injectors (11) | Installation: Check the injection lines (11), eventually replace. Observe the installation position . | |
Ring wrench | |||
Box wrench bit | |||
19 | Remove the fuel return line (13) on the cylinder head (1) | Installation: Replace seal rings. | |
20 | Remove the compressor coolant line (14) on the cylinder head (1) | Installation: Replace seal rings. | |
21 | Remove the bracket (15) on the cylinder head (1) | Vehicles with Code (MS4) BlueTec 4 or with Code (MS5) BlueTec 5. | |
22 | Uncover the wiring harness (18) | ||
23 | Remove the connecting neck of the coolant pipe (19) on the cylinder head (1) | Vehicles with Code (MS4) BlueTec 4 or with Code (MS5) BlueTec 5. | |
Installation: Clean the sealing surfaces and replace the sealing. | |||
24 | Remove the bracket (17) on the cylinder head (1) | Installation: Manually screw-on the bolts of the bracket (17) and of the exhaust manifold (2) simultaneously. | |
25 | Remove the cylinder head bolts (16) | Engine 924.9, 926.9 | |
Crankcase bolt | |||
Socket wrench bit | |||
26 | Lift the cylinder head (1) with the lifting device (20) | Lay the cylinder head (1) on its side, otherwise the installed injection nozzle bracket assembly can be damaged. | |
The lifting device eyelet (20) has to point to the exhaust side. | |||
Lifting device | |||
27 | Remove the cylinder head gasket | Installation: Install a new cylinder head gasket. The marking "TOP" has to point to the cylinder head (1). Observe the centering sleeves on the crankcase. | |
28 | Clean the cylinder head (1) | ||
Topical note | Information on working sealing surfaces when carrying out engine repairs | ||
29 | Plug all bores in the partitioning surface of the crankcase with own-manufacturing plugs | ||
| . | ||
| Check | ||
30 | Check the cylinder head sealing surface, as well as the cylinder head gasket for cracks and damages |
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Cylinder head height | |||
Maximum permissible flatness deviation of cylinder head mating surface | |||
31 | Check the cylinder head sealing surface, as well as the cylinder head gasket for cracks and damages |
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32 | Clean and check the partitioning surface of the crankcase | Impurities are not to get in through the orifices for engine oil, coolant, tappet push rods and cylindrical head bolts (16) as well as in the cylinders, otherwise, engine damage may occur. | |
33 | Measure the shank length (L) of the cylinder head bolts (16) | Lack of changing the category of BE | |
Should the maximum permissible shank length (L) be exceeded, replace the corresponding cylindrical head bolt (16). | |||
Cylinder head bolts | |||
34 | Measure the shank length of the exhaust manifold bolts | Should the maximum permissible shank length be exceeded, replace the corresponding exhaust manifold bolt. | |
Exhaust manifold fastening bolts to cylinder head | |||
35 | Carry out additional testing jobs after an engine repair in the cylinder head (1) and on the cylinder head gasket |
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36 | Install in reverse order | ||
37 | Fill the engine oil circuit |
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38 | Start the engine and let it idle for approx. 10 s, until the oil pressure builds up, leave the engine running alternating the engine revolutions | ||
39 | Stop the engine and check the fuel filter housing area (cylinder head 1) for leaks | Visual inspection | |
40 | Check the engine oil level on the display and top off as needed | ||
Notes on engine oil | |||
Observe the quality of the engine oil in the maintenance system or in the guideline of means of operation. | |||
41 | Synchronize the time between the screen and the display |
000 589 68 03 00
Box wrench bit
904 589 01 63 00
Lifting device
000 589 07 03 00
Ring wrench
422 589 02 09 00
Socket wrench bit